CD45RA Monoclonal Antibody (OX33), APC, eBioscience™, Invitrogen™

Description

• Description: This OX33 monoclonal antibody reacts with rat CD45RA
• In rats, this isoform of CD45, which is also known as leukocyte common antigen, is present only on B cells
• CD45 is a type I transmembrane protein tyrosine phosphatase that exists as a variety of different isoforms due to alternative splicing
• Applications Reported: This OX33 antibody has been reported for use in flow cytometric analysis
• Applications Tested: This OX33 antibody has been tested by flow cytometric analysis of rat splenoctyes
• This can be used at less than or equal to 0.125 μg per test
• A test is defined as the amount (μg) of antibody that will stain a cell sample in a final volume of 100 μL
• Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test
• It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest
• Excitation: 633-647 nm; Emission: 660 nm; Laser: Red Laser
• Filtration: 0.2 μm post-manufacturing filtered
• CD45RA is an isoform of the CD45 complex and has restricted expression between different subtypes of lymphoid cells
• CD45 (LCA, leukocyte common antigen) is a receptor-type protein tyrosine phosphatase ubiquitously expressed in all nucleated hematopoietic cells, comprising approximately 10% of all surface proteins in lymphocytes
• CD45 glycoprotein is crucial in lymphocyte development and antigen signaling, serving as an important regulator of Src-family kinases
• CD45 protein exists as multiple isoforms as a result of alternative splicing and these isoforms differ in their extracellular domains, however, they share identical transmembrane and cytoplasmic domains
• CD45 isoforms differ in their ability to translocate into the glycosphingolipid-enriched membrane domains and their expression depends on cell type and physiological state of the cell
• Besides the role in immunoreceptor signaling, CD45 is important in promoting cell survival by modulating integrin-mediated signal transduction pathway and is also involved in DNA fragmentation during apoptosis
• CD45 is expressed on cells of the human hematopoietic lineage, with the exception of mature red cells and is not detected on differentiated cells of other tissues
• It is likely that CD45 plays an important role in signal transduction, inhibition or upregulation of various immunological functions
• Diseases associated with CD45 dysfunction include severe combined immunodeficiency and Hepatitis C.